Evaluate angles at 49.4E/15.2N

Original John J. O'Neill observation said to be on 7/29/1953 at CL= 127.2
 --> 06:28:23 UT --> sun = 3.26 deg

H. P. Wilkins Mt Wilson observation "6/17/1954"

6/17/1954 UT

Moon rises ~04:00 UT, 99.45% illuminated, CL = 102.3; SA = 27.38
sets ~13:30 UT, 98.99% illum, CL = 107.1; SA = 22.75

rises again 6/18/1954 UT at ~05:00 UT, CL = 115.0; SA = 15.18;  still 6/17 local time
Sunrise ~12:30 UT, CL = 118.8; SA = 11.50

Paul Roques photos
1/21/1954; 6:25 UT, CL= 111.4; SA = 18.56
1/22/1954; 6:26 UT, CL= 123.5; SA = 6.87
1/22/1954; 12:47 UT, CL= 126.8; SA = 3.78

KC Pau image 10/12/2003 said to be at CL=115 --> 16:07:43 UT --> sun = 15.27 deg

Dobbins photo (ST Jan 1998, p. 107): 7/15/1995; 07:52 UT --> CL = 122.9; SA = 7.04

LTVT examples (Sun Angle) --

1 : 0.74
2 : 4.77
3 : 5.98
4 : 7.01
5 : 9.89
6 : 9.93
7 : 13.09
8 : 15.06
9 : 25.89
10 : 32.00


LO-IV-191H : 24.02
AS17-M-0291 : 21.30 (from east)

--

Gus Johnson drawings in Graham (1995)

Fig. 1: 3/18/1987; 04:30 - 05:25 UT --> SA = 3.37 to 2.93

Fig. 2: 10/12/1995; 04:30 UT --> SA = 2.75

Fig. 3: 8/23/1986; 08:00 to 09:00 UT --> SA = 2.39 to 1.90



--

Excerpts from letters by O'Neill and Roques to Walter Haas appeared in October 1953 /Strolling Astronomer/.

Ashbrook, J. "Is there a Bridge on the Moon?" Sky and Telescope, Vol. 13, p. 205 (April 1954).

Also may be mentioned in /Strolling Astronomer/ Vol. 8, no. 1-2, pp. 1-6 (1954).

Wilkins, H. P. "O'Neill's Bridge" JBAA Vol 65 No 2, 1955. -- mentioned in Firsoff /Strange World of the Moon/, 1960 (QB581, F46).

Dobbins, T. A. and Baum, R. M. "O'Neill's Bridge Remembered", Sky and Telescope, Vol. 95, No. 1, pp. 105-108 (Jan. 1998)

Graham, F. and Johnson, G. 1995. "The O'Neill Bridge: Discovery, Analysis, and Subsequent Track in the Literature to the Present," /Selenology/ Vol. 14, p. 4.  (reprinted in Selenology Today, Vol. 10, pp. 34-40).








